Sennheiser HDI 406 - ANNEXE 69 Manual page 5

Introduction
The system inlrared mono, consistmg of the transmlffer SI 406 and the receiver
HDI 406. was speclally put together as a set lor the wlreless transmission 01 the
televIsion sound. It has been bullt up to the latest state 01 engineering. W,fh thls
system fhe role 01the often cumbersome headphone cable IS taken over by
Inlrared light. Because the mlrared transmlffer SI 406 IS capable of supplymg
several receivers, the system can at any time be extended so that II so desired
the whole lamlly can IIst2n to the TV sound via wireless headphones Each wearer
01 a HDI 406 receiver can adjust the volume 01 his particular headset
Independently of the televIsion set'wlthout runnmg the rlsk 01 disturblng other
members 01 the famlly or the nelghbours After pluggmg the transmlffer's trans-
former unit mto the mams, connectmg the AF cable to the TV set and sWltchlng
the receiver on. the system IS ready lor use
Operation
Before putting the system into operation the accu plug 5 of the receiver/head-
phones HDI 406 must be charged tor at least 24 hrs as a certain amount of
sell-discharge during storage is unavoidable. Having completed this stage,
please proceed as folIows:
Infrared transmitter SI 406
1. Plug transformer unif 1 info 220 volt mains socket.
2. Inserf connecting plug into the headphone socket of the television set. The
In order to ensure problem-free connections, the SI 406 has been fiffed with
a universal connector. In its entire form the universal connector will fit into
6.3 mm tack socket. If your TV-set is fiffed with a dice-5 or 7-pin
socket, one merety has to remave fhe forward section of the connector in
order to obtain the corresponding plug. Should you ever wish to
simultaneously use a wire-bound headphone, this can be achleved by
plugging It onto the back of the transmitter's connector plug.
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Should your television sef happen to be fiffed with a different socket,
this problem can be solved by using a suitable adapter (figure 1) or having
your dealer change the connector (figure 2).
3. Set up the inlrared transmiffer so that the invisible mfrared light is emiffed
freely throughout the room. Due to its Ilat construction, this unit can be
positioned underneath or on top of the majority of televisions.
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Fi9~:o1
Bekhiet: Best-Nr. 43-5604 (0,15 m)
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Austerlitz: Az 1209 (0,2 m)
3,5mm0c:c::JIY
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Bekhiet: Best-Nr. 35-5604 (0,15 m)
Austerlitz: Az 1247 (0,2 m) Adapters
Connection
I Figure 2
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loudspeaker I
jack plug
plug I
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Ex-works
Wiring (seen from solde ring side)
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Pie ase note:
In same TV-sets the headphone/second speaker socket is a switch socket so
that the loudspeaker can be switched off during headphone transmission.
Depending on how you insert the plug (1800 rotation) the loudspeaker is
switched olf or left on. Other TV-sets have a switch which serves the same
purpose. If in doubt please consult your TV-dealer.
Receiver/headphone HDI 406
1. Plug (he accu plug 5 into the headphone.
An accu plug can in a day powerthe HDI406 for approx. 5 hours which is about
the length of an average evening in front of the television. After use you simply
remave it from the headphone and plug it into the nearest walt socket for
recharging. Alter 19 hours the accu is once more lully-charged for the next
evening's viewing. If the receiver is to be used for more than five hour's daily,
we recommend that you purchase a second accu plug for use as areserve.
(Available from your special ist dealer under the designation GZS 406).
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